0_0_20012833_12267.cpp: In function 'void Add_edge(int, int, int, int)':
0_0_20012833_12267.cpp:69:5: error: reference to 'next' is ambiguous
next[++ecnt] = first[u];
^
0_0_20012833_12267.cpp:56:17: note: candidates are: int next [420]
int first[maxn],next[maxn << 1],ver[maxn << 1],tim[maxn << 1],fee[maxn << 1],ecnt;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:60,
from 0_0_20012833_12267.cpp:28:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
0_0_20012833_12267.cpp: In function 'void Bfs()':
0_0_20012833_12267.cpp:87:46: error: reference to 'next' is ambiguous
for(int i = first[x.a]; i != -1; i = next[i]){
^
0_0_20012833_12267.cpp:56:17: note: candidates are: int next [420]
int first[maxn],next[maxn << 1],ver[maxn << 1],tim[maxn << 1],fee[maxn << 1],ecnt;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:60,
from 0_0_20012833_12267.cpp:28:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
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